{"id":"CVE-2021-33786","title":"Windows LSA Security Feature Bypass Vulnerability","summary":"Windows LSA Security Feature Bypass Vulnerability","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","vendor":"microsoft","product":"windows_server_2008","affected":["windows_server_2008","windows_server_2008 = r2","windows_server_2012","windows_server_2012 = r2","windows_server_2016","windows_server_2016 = 20h2","windows_server_2016 = 2004","windows_server_2019"],"published":"2021-07-14","updated":"2026-08-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-33786","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33786","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33786","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.02097,"epssPercentile":0.80862,"ingestedAt":"2026-08-10T16:41:16.021Z","slug":"CVE-2021-33786","body":"## Overview\n\nWindows LSA Security Feature Bypass Vulnerability\n\n## Affected\n\n- `windows_server_2008`\n- `windows_server_2008 = r2`\n- `windows_server_2012`\n- `windows_server_2012 = r2`\n- `windows_server_2016`\n- `windows_server_2016 = 20h2`\n- `windows_server_2016 = 2004`\n- `windows_server_2019`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}